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Wolverhampton Intellectual Repository and E-Theses > School of Technology > School of Engineering and the Built Environment > Construction and Infrastructure > Use of 'Limited Life Geotextiles' (LLGs) for Basal Reinforcement of Embankments Built on Soft Clay

Please use this identifier to cite or link to this item: http://hdl.handle.net/2436/29543
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Title: Use of 'Limited Life Geotextiles' (LLGs) for Basal Reinforcement of Embankments Built on Soft Clay
Authors: Sarsby, Robert W.
Citation: Geotextiles and Geomembranes, 25(4/5): 302-310
Publisher: Amsterdam: Elsevier
Journal: Geotextiles and Geomembranes
Issue Date: 2007
URI: http://hdl.handle.net/2436/29543
DOI: 10.1016/j.geotexmem.2007.02.010
Additional Links: http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6V3D-4P127DD-1&_user=10&_coverDate=10%2F31%2F2007&_alid=744554179&_rdoc=1&_fmt=high&_orig=search&_cdi=5728&_sort=d&_docanchor=&view=c&_ct=1&_acct=C000050221&_version=1&_urlVersion=0&_userid=10&md5=95221b0b1c72fab267673faebb7c3623
Abstract: Polymeric technical fabrics have long working lives and are sometimes used in practical situations where a geosynthetic is only needed to be fully functional for a relatively short period of time, e.g. a separator layer beneath a temporary access road. This article concerns the use of ‘Limited Life Geotextiles’ (LLGs), i.e. high specification geotextiles, which are designed on the basis of having a limited working life, as basal reinforcement for an embankment built on soft clay. A method is given for defining the allowable progressive loss of tensile strength of the foregoing basal LLG as a result of improvement of the shear strength of the foundation soil due to consolidation. It is shown that the derived relation between required reinforcement strength and consolidation time (the Time-Strength-Envelope) can be represented by a simple exponential equation. Vegetable fibres are natural candidates for use in the manufacture of LLGs since they are a renewable resource and their degradation with time is accounted for in the design of the LLG. Combinations of vegetable fibres growing in tropical regions which are capable of satisfying the Time-Strength-Envelopes for several embankment slopes are presented. (Elsevier)
Type: Article
Language: en
Keywords: Geotextiles
Soil erosion
Limited life geotextiles
Tensile strength
Vegetable fibres
Geosynthetics
Soil consolidation
Soil reinforcement
Road construction
Embankment slopes
Time-strength envelope
Geotextiles
ISSN: 02661144
Appears in Collections: Construction and Infrastructure

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